How to Sharpen an Ulu


The ulu knife is a popular native Alaskan knife. The Inuit use it for hunting, fishing, filleting and skinning. Traditionally, the ulu is made with a wooden or bone handle and blades of sharpened stone. The triangular blade of the ulu is broad and curved. The blade is perpendicular to the handle and connected to it by one or two shafts made of the same material as the blade. Today, the ulu has a stainless steel blade and a handle made of hardwood. Like all blades, the ulu becomes dull with repeated use and will need to be sharpened.

Things You'll Need

  • Clamp
  • Whetstone or diamond-coated sharpening steel
  • Secure the Ulu on a table with a clamp. The ulu should lie on the flat surface with the edge of its blade extending beyond the side of the table. The handle will get in the way, so it needs to be held down firmly too.

  • Run the sharpener up and down the length of the blade. You can use either a whetstone or a diamond-coated steel as a sharpener. Start out gently and keep the pace until you get used to the awkward angle required for sharpening the clamped blade.

  • Sharpen the blade by moving the sharpener along the blunted cut. Ulu blades are sharpened in one direction along the blade when they are manufactured. Make sure to follow this direction while sharpening the blade. Keep moving the sharpener along the blade until the face of the blade looks shiny and is sharp to touch.

  • Turn the ulu on its other side to sharpen the other edge of the blade. You will have to place it down on another side of the table and clamp the knife in place before you start sharpening again.

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